diff --git a/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.models.ts b/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.models.ts
index 13b55d4f67..cc5a9baf4f 100644
--- a/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.models.ts
+++ b/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.models.ts
@@ -35,7 +35,8 @@ import {
   AceHighlightRule,
   AceHighlightRules,
   dotOperatorHighlightRule,
-  endGroupHighlightRule
+  endGroupHighlightRule,
+  identifierRe
 } from '@shared/models/ace/ace.models';
 import { HelpLinks, ValueType } from '@shared/models/constants';
 import { formPropertyCompletions } from '@shared/models/dynamic-form.models';
@@ -924,8 +925,6 @@ export class ScadaSymbolElement {
 
 }
 
-const identifierRe = /[a-zA-Z$_\u00a1-\uffff][a-zA-Z\d$_\u00a1-\uffff]*/;
-
 const scadaSymbolCtxObjectHighlightRule: AceHighlightRule = {
   token: 'tb.scada-symbol-ctx',
   regex: /\bctx\b/,
diff --git a/ui-ngx/src/app/shared/models/ace/ace.models.ts b/ui-ngx/src/app/shared/models/ace/ace.models.ts
index 5287886b84..9533f80d51 100644
--- a/ui-ngx/src/app/shared/models/ace/ace.models.ts
+++ b/ui-ngx/src/app/shared/models/ace/ace.models.ts
@@ -376,5 +376,7 @@ export const endGroupHighlightRule: AceHighlightRule = {
   next: 'no_regex'
 };
 
+export const identifierRe = /[a-zA-Z$_\u00a1-\uffff][a-zA-Z\d$_\u00a1-\uffff]*/;
+
 
 
diff --git a/ui-ngx/src/app/shared/models/calculated-field.models.ts b/ui-ngx/src/app/shared/models/calculated-field.models.ts
index f6d7aaaa1e..fef90613a8 100644
--- a/ui-ngx/src/app/shared/models/calculated-field.models.ts
+++ b/ui-ngx/src/app/shared/models/calculated-field.models.ts
@@ -32,7 +32,8 @@ import {
   AceHighlightRule,
   AceHighlightRules,
   dotOperatorHighlightRule,
-  endGroupHighlightRule
+  endGroupHighlightRule,
+  identifierRe
 } from '@shared/models/ace/ace.models';
 
 export interface CalculatedField extends Omit<BaseData<CalculatedFieldId>, 'label'>, HasVersion, HasEntityDebugSettings, HasTenantId, ExportableEntity<CalculatedFieldId> {
@@ -480,6 +481,17 @@ export const getCalculatedFieldArgumentsHighlights = (
         ? 'calculatedFieldRollingArgumentValue'
         : 'calculatedFieldSingleArgumentValue'
     })),
+    no_regex: [
+      {
+        token: 'tb.identifier',
+        regex: identifierRe,
+      },
+      {
+        token: 'tb.paren.lparen',
+        regex: '\\(',
+        next: 'start'
+      }
+    ],
     ...calculatedFieldSingleArgumentValueHighlightRules,
     ...calculatedFieldRollingArgumentValueHighlightRules,
     ...calculatedFieldTimeWindowArgumentValueHighlightRules